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甲基硫环磷是一种新农药,为了弄清防治棉花伏蚜、棉红蜘蛛的效果和最佳用药量,我们于1983年在洪洞县董庄大队进行了小区试验,结果如下.一、试验方法小区面积3厘,每重复5小区,随机排列,重复3次.甲基硫环磷为35%的乳剂,永济农药厂生产,施药量为每亩120斤稀释液。以喷清水为对照.二、防治棉花伏蚜3月8日施药,甲基硫环磷分1,000倍、1,500倍、2,000倍液3个浓度,同时喷洒氧化乐果2,000倍液进行比较。施药后48小时观察.1,000倍液的校正虫口减退率达到
Methylthiophos is a new pesticide, in order to find out the effect of cotton aphid control, cotton spider mites and the best dosage, we conducted a community test in Dongzhuang Brigade in Hongdong County in 1983, the results are as follows. , The test method area of 3 cm, 5 cells per repeat, random arrangement, repeated 3 times.Methylthiophene phosphorus 35% emulsion, Yongji Pesticide Factory production, application rate of 120 kg per mu of diluent. Spraying water as a control.Second, the control of cotton aphid spraying March 8th, methylthio-phosphorus 1,000 times, 1,500 times, 2,000 times the concentration of three, while spraying omethoate 2,000 times for comparison. Observed 48 hours after application, the correction rate of 1, 000 times the rate of population reduction was achieved